Question

The ratio of resolving powers of an optical microscope for two wavelengths λ₁ = 4000 Å and λ₂ = 6000 Å is(a) 9 : 4(b) 3 : 2(c) 16 : 81(d) 8 : 27

Answer 1

$<b>$

Option B is Correct

Answer 2

Answer:

B) 3:2

Explanation:

Resolving power is the ability of an imaging device to separate, the points of an object which are located at a small angular distance. It is the power of an optical instrument to separate the far away objects, that are close together, into an individual image.

λ₁ = 4000 (Given)

λ₂ = 6000 (Given)

The resolving power is proportional to λ–1

Therefore, (R.P.for λ1)/(R.P. for λ2)

λ₂/λ₁ = 6000/4000

= 6:4

= 3:2

Thus, the ratio of the respective resolving powers is 3:2.